CN102625887B - Electromagnetic valve - Google Patents
Electromagnetic valve Download PDFInfo
- Publication number
- CN102625887B CN102625887B CN2010800390040A CN201080039004A CN102625887B CN 102625887 B CN102625887 B CN 102625887B CN 2010800390040 A CN2010800390040 A CN 2010800390040A CN 201080039004 A CN201080039004 A CN 201080039004A CN 102625887 B CN102625887 B CN 102625887B
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- Prior art keywords
- valve
- movable core
- air
- operational unit
- plunger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0712—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising particular spool-valve sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
- F16K31/423—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
- F16K31/426—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves the actuated valves being cylindrical sliding valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
- F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Fluid-Driven Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
A manual operation button (70) which can rotate about the axis (C1) extending in the direction perpendicular to the direction of the axis of a plunger (57) is mounted to a valve case (21), and an elastic section (76) which faces an end of the plunger (57) and can elastically deform in the direction of the movement of the plunger (57) is provided to the manual operation button (70). The elastic section (76) is provided with: a cutout section (76a) which, when the manual operation button (70) is at a rotation-reference position, permits the plunger (57) to move between a first position and a second position; and a body section (76b) which, when the manual operation button (70) becomes rotated from the rotation-reference position, moves the plunger (57) to the first position.
Description
Technical field
The present invention relates to a kind ofly by the movable core because moving to coil electricity, make to switch the solenoid valve that the valve body of the connected state of a plurality of mouthfuls moves.
Background technique
At present, as solenoid valve, all if any being configured in the pneumatic source that produces compressed-air actuated air compressor etc. and discharging the solenoid valve between the pressure work equipment that carries out work by the compressed-air actuated supply from pneumatic source.Such solenoid valve be arranged on connect pneumatic source and air pressure working equipment a plurality of pneumatic pipe arrangement midway.
Solenoid valve has valve chamber and the electromagnetic coil case be connected with valve chamber.Valve chamber possesses and forms hollow shape and be communicated with its inside and outside a plurality of mouthfuls, moves the valve body of the connected state that is provided with freely each mouthful of switching in the inside of valve chamber.The electromagnetic coil case has been taken in coil and movable core, by by controller, made coil become the energising or non-energising, movable core is moved, because of with its interlock, valve body is moved.
Each pneumatic pipe arrangement is connected with each mouthful of valve chamber respectively, by controller, controls solenoid valve, switches the connected state of each mouthful of valve chamber, switches to the compressed-air actuated supply of each pneumatic pipe arrangement and discharge state.By like this, pressure work equipment is moved to another state from a state.As pressure work equipment, such as there are to have by compressed-air actuated supply, discharge the piston that moved and the cylinder of bar etc. here.
In solenoid valve, the solenoid valve of the on-line operation formula to make the direct mode moved of valve body in valve chamber by movable core is arranged and form air-pressure chamber with at least any side in the movement direction both sides of the valve body in valve chamber, by the movement of movable core, undertaken supply with discharging pressurized air to air-pressure chamber, and the solenoid valve of the indirect operation type of the mode by making like this valve body move.Because the solenoid valve of on-line operation formula does not have air-pressure chamber, so be conducive to the miniaturization of solenoid valve.On the other hand, because the pressurized air that the solenoid valve of operation type ejects from pneumatic source to each air-pressure chamber supply indirectly moves valve body, so there is the valve body that can make steering force large.
Even the solenoid valve of disposable type, also often have the situation that a plurality of solenoid valves is assembled to metal parts or module and install and use, this model of having gathered is also referred to as multi-joint solenoid valve.When using a plurality of solenoid valves when multi-joint solenoid valve is used, because the quantity of the mouth for connecting pneumatic pipe arrangement increases, so complicated such as the annexation of each pneumatic pipe arrangement and each mouthful.Thereby, a kind of like this device is arranged, no matter to coil electricity/non-energising, can be by manually-operable operate mobile iron core forcibly, and can check whether each pneumatic pipe arrangement correctly is connected with each mouthful supplying with the compressed-air actuated while.
As can be by the manually-operable solenoid valve of operate mobile unshakable in one's determination forcibly, such as the solenoid valve that is known to Japanese documentation 1 and Japanese documentation 2 and puts down in writing.
The solenoid valve that Japanese documentation 1 is put down in writing is the solenoid valve of indirect operation type, in the both end sides of main valve axle (valve body), is respectively arranged with air-pressure chamber.Each air-pressure chamber be by being communicated with to the gas path, and by movable core, set open and close valve carries out connection to the gas path/partition.In the oriented module that forms valve casing (valve chamber), be provided with to the diametric(al) of movable core hand push button movably, be provided with in the tip side of hand push button the plane of inclination contacted with the end of movable core.And, by making coil electricity, give the gas path in connected state, by making coil in non-energising, give the gas path in the partition state.
By hand push button is pushed to movable core, sliding contact is carried out in the mode of the plane of inclination that reaches hand push button in the end of movable core, by like this, can make movable core move forcibly and make to the gas path in connected state.In addition, can be by hand push button being turned back to original state, contrary to the above, make to the gas path in the partition state.
The solenoid valve that Japanese documentation 2 is put down in writing is the solenoid valve of on-line operation formula, in the inside arranged opposite of main body (valve chamber), the supply valve body (valve body) directly driven by movable core is arranged and discharge valve body (valve body).Supply with valve body and be arranged on movable core, discharge valve body and moved by movable core across push rod.Each valve body is opened and closed the valve seat in main body respectively, and in the opposing party just closes when a side opens relation.In main body, be provided with on the diametric(al) of movable core movably operating knob, be provided with in the tip side of operating knob the support that movable core is upwards pushed away.And, in when energising, supply with valve seat for opening at coil, discharge valve seat for closing, at coil, during in non-energising, the supply valve seat is for closing, and the discharge valve seat is for opening.
By operating knob is pushed to movable core, the end of movable core is urged by support, by like this, movable core can be promoted forcibly and makes to supply with valve seat and open, and makes to discharge valve seat and closes.In addition, can be by operating knob being turned back to original state, contrary to the above, make to supply with valve seat and close, make to discharge valve seat and open.
Japanese documentation 1: TOHKEMY 2004-11736 communique (Fig. 2)
Japanese documentation 2: Japanese Patent Publication 4-136382 communique (Fig. 1)
Summary of the invention
The problem that invention will solve
But, the solenoid valve of putting down in writing according to above-mentioned Japanese documentation 1, because the tip portion of hand push button forms solid cylindricly, so the axial dimension of fixed iron core of working as movable core and being arranged on the back side of movable core produces when error is arranged, can not absorb size error.For example, when the axial dimension of the error ratio regulation of the axial dimension of movable core and fixed iron core is large, even the pressing operation hand push button makes movable core move to greatest extent to fixed iron core, the plane of inclination that the end of movable core also is positioned at hand push button, in addition just can not be pressed into hand push button midway.In this case, after being pressed into hand push button, make hand push button rotate, and movable core is held in to the blocking difficulty that becomes.In addition, the solenoid valve of putting down in writing according to above-mentioned Japanese documentation 2, because operating knob and support are body separately, causes manufacture cost to rise so have not only number of components more, and forgets the problem of installation etc.
The object of the present invention is to provide a kind of solenoid valve possessed without the manual operational unit of the larger size error that components number is increased just can absorb movable core etc.
The means of dealing with problems and adopting
Solenoid valve of the present invention, is characterized in that, comprising: valve chamber, form hollow shape, and have and be communicated with inside and outside a plurality of mouthfuls; Valve body, mobile being arranged on freely in described valve chamber, for switching the connected state of described each mouthful; The electromagnetic coil case, be connected with described valve chamber, for taking in coil; Movable core; Be accommodated in described electromagnetic coil case, described movable core moves to primary importance when described coil electricity, when described coil no electric circuit, moves to the second place, so that described valve body moves; Manual operational unit, be installed on described valve chamber, centered by the axle center that can extend by the axial rectangular direction along with described movable core, rotates; And the spring section of tubular, be arranged on described manual operational unit, opposed with the end of described movable core, and on the movement direction of described movable core elastically deformable, notch part, be arranged at described spring section, when described manual operational unit is positioned at the rotation reference position, allow described movable core to move between described primary importance and the described second place; Main part, be arranged at described spring section, when described manual operational unit is rotated from described rotation reference position, described movable core moved to described primary importance; Support rod, be arranged at the radially inner side of described spring section, in mobile mode freely, embeds in the bearing hole that is arranged at described valve chamber; Backspring, be arranged between described spring section and described support rod, for the radial outside to described movable core, pushes described manual operational unit; And the anti-locking mechanism of misoperation, be arranged at described manual operational unit, the anti-locking mechanism of described misoperation is when described manual operational unit is positioned at the radial outside of described movable core, limit the rotation of described manual operational unit, when described manual operational unit is positioned at the radially inner side of described movable core, allow the rotation of described manual operational unit.
Solenoid valve of the present invention, it is characterized in that, at described valve chamber, be provided with for supplying with the compressed-air actuated a pair of air-pressure chamber of discharging the movement direction both end sides act on described valve body and for being communicated with the air pressure path of described each air-pressure chamber, described movable core is by moving to described primary importance, be communicated with described air pressure path, by moving to the described second place, block described air pressure path, based on described pressurized air, to the supply of described each air-pressure chamber, discharge, thereby described valve body is moved.
Solenoid valve of the present invention, it is characterized in that, be provided for accordingly being communicated with or blocking a pair of described movable core of described air pressure path with described each air-pressure chamber, by to corresponding described each coil electricity of described each movable core or no electric circuit, thereby supply with individually and discharge described pressurized air to described each air-pressure chamber.
The invention effect
According to solenoid valve of the present invention, centered by the axle center that will extend by the axial rectangular direction to described movable core, rotating manual operational unit is arranged on valve chamber, will be opposed with the end of movable core, on the movement direction of movable core, the spring section of the tubular of elastically deformable is arranged on manual operational unit, spring section has notch part and main part, when described notch part is positioned at the rotation reference position at described manual operational unit, allow described movable core to move between described primary importance and the described second place, described main part is when making described manual operational unit start to rotate from described rotation reference position, movable core is moved to primary importance.Radially inner side in described spring section, be provided with in mobile mode freely and embed the support rod in the bearing hole that is arranged at valve chamber, between spring section and support rod, be provided with the backspring for the pushing of the radial outside to movable core manual operational unit, be provided with the anti-locking mechanism of misoperation at manual operational unit, the anti-locking mechanism of this misoperation is when manual operational unit is positioned at the radial outside of movable core, the rotation of limit manual functional unit, when manual operational unit is positioned at the radially inner side of movable core, allow the rotation of manual operational unit.Therefore, can rotate from rotating reference position by made manual operational unit by manually-operable, movable core is moved forcibly.Due to the mobile elastically deformable of the main part that movable core is moved along with movable core, so can absorb the larger size error of movable core etc.Because the rotation of spring section and manual operational unit is rotated simultaneously.So can realize with manual operational unit integratedly, and can suppress the increase of components number.In addition, because support rod moves, embed freely bearing hole, so can improve the flexural rigidity of the spring section side of manual operational unit, inhibition is along with the deflection of the manual operational unit of the resiliently deformable of main part.Therefore, can prevent that the pressurized air in valve chamber from occurring from the situation of leaking to outside between valve chamber and manual operational unit.Because manual operational unit can't rotating operation under the state of deflection, so can prevent uneven wear along with the rotation of manual operational unit etc.And, owing to being provided with the anti-locking mechanism of backspring and misoperation, therefore, can prevent from giving as security in the pushing force of manual operational unit opposing backspring into after in rotatable state, the situation of the unconscious misoperation manual operational unit of generation operator.
According to solenoid valve of the present invention, arrange to supply with on valve chamber and discharge the air pressure path that the compressed-air actuated a pair of air-pressure chamber of the movement direction both end sides that acts on valve body is arranged and be communicated with each air-pressure chamber, movable core is by the movement to primary importance, be communicated with the air pressure path, by the movement to the second place, cut off the air pressure path, valve body is discharged and is moved by the compressed-air actuated supply to each air-pressure chamber.Therefore, can be considered as the solenoid valve of indirect operation type, and the large valve body of movable operation power.By like this, all if many mouthfuls of changes of corresponding valve chamber.
According to solenoid valve of the present invention, corresponding with each air-pressure chamber, a pair of movable core that is communicated with or cuts off the air pressure path is set, by energising or the non-energising of each coil to corresponding with each movable core, to each air-pressure chamber, supply with individually discharge pressurized air.Therefore, the large valve body of removable more steering force.
the accompanying drawing explanation
Fig. 1 is the sectional view of the related solenoid valve of the first embodiment.
Fig. 2 means the part amplification sectional view of the round A of section of enlarged view 1.
Fig. 3 means the fractionation stereogram of the manual operational unit of exploded view 2.
(a) of Fig. 4, (b) mean from the plan view of the example of the operation display part of the arrow B direction of Fig. 1.
(a) of Fig. 5, (b) are the part amplification sectional views that the sequence of operation of the hand push button corresponding to the cross section with Fig. 2 describes.
(a) of Fig. 6, (b) are the part amplification sectional views that the sequence of operation to the hand push button of the direction of the cross section quadrature from Fig. 5 describes.
Fig. 7 is the sectional view of the related solenoid valve of the second embodiment.
Fig. 8 is the sectional view of the related solenoid valve of the 3rd embodiment.
Embodiment
Below, with reference to accompanying drawing, the first embodiment of the present invention is described in detail.Fig. 1 means that sectional view, Fig. 2 of the solenoid valve that the first embodiment is related mean that part amplification sectional view, Fig. 3 of the round A of section of enlarged view 1 mean that fractionation stereogram, Fig. 4 (a), (b) of the manual operational unit of exploded view 2 mean the routine plan view from the operation display part of the arrow B direction of Fig. 1.
As shown in Figure 1, solenoid valve 10 is configured in and produces compressed-air actuated air compressor (source of taking offence) 11 and discharge and carry out between the cylinder (pressure work equipment) 12 of work by the compressed-air actuated supply from air compressor 11.Also the compressed-air actuated gas holder (chamber) that stockpiles authorized pressure can be set between solenoid valve 10 and air compressor 11 here.
Valve portion 20 has by aluminium material etc. being cast or thereby shaping by stock removal forms the roughly valve chamber 21 of the hollow shape of rectangular shape, in the inside of valve chamber 21, is formed with reception hole 22.Reception hole 22 extends along the long side direction (left and right directions in figure) of valve chamber 21, in the inside of reception hole 22, as the main valve axle 23 of valve body is mobile it is axial, is contained freely.
When main valve axle 23 is mobile to an axial side (right side in figure), become the state shown in Fig. 1.Namely, give gas port 24 and the first delivery outlet 27 in connected state, the second delivery outlet 28 and second row gas port 26 in connected state.By like this, cylinder 12 is moved to arrow a direction in figure.On the other hand, when main valve axle 23 to axial opposite side (in figure left side) while being moved, the connected state of each mouthful 24～28 is switched, give gas port 24 and the second delivery outlet 28 in connected state, the first delivery outlet 27 and first row gas port 25 in connected state.By like this, cylinder 12 is moved to arrow b direction in figure.Like this, solenoid valve 10 becomes two five-way electromagnetic valves.
Long side direction one side at valve chamber 21 is formed with the first air-pressure chamber 29, in the slides within of the first air-pressure chamber 29, is provided with freely the first piston 30 that main valve axle 23 is pushed to axial opposite side.On the other hand, at the long side direction opposite side of valve chamber 21, be formed with and opposed the second air-pressure chamber 31 of the first air-pressure chamber 29, in the slides within of the second air-pressure chamber 31, be provided with freely the second piston 32 that main valve axle 23 is pushed to an axial side.The diameter dimension of the diameter dimension of the second piston 32 and first piston 30 is in a ratio of path, by like this, the compression area of first piston 30 is larger than the compression area of the second piston 32, and when the pressure in each air-pressure chamber 29,31 is isobaric, main valve axle 23 is moved to axial opposite side.
As shown in Figure 2, the first open and close valve mechanism 34 be arranged on to gas path 33 midway, make to gas path 33 in connected state or cut off the device of state.The first open and close valve mechanism 34 is formed by the plunger 57 of electromagnetism section 50, open and close valve 59 and the first pushing spring 61 be fixed on plunger 57.In addition, supply with valve seat 33a to being formed with of gas path 33 midway, open and close valve 59 is along with the movement of plunger 57 is disseated and takes a seat supply valve seat 33a.
The second open and close valve mechanism 36 be arranged on exhaust passageway 35 midway, make exhaust passageway 35 in connected state or cut off the device of state.The second open and close valve mechanism 36 by being fixed on valve frame 38 on valve chamber 21 in the first air-pressure chamber 29, in valve frame 38 main valve axle 23 axially on the Nozzle flapper valve 39 that moved and be arranged on valve frame 38 and Nozzle flapper valve 39 between the second pushing spring 40 form.In addition, being formed with of exhaust passageway 35, discharge valve seat 35a midway, 39 couples of discharge valve seat 35a of Nozzle flapper valve are disseated to take a seat.
Be provided with a plurality of interlock bolts 41 (only illustrating 2 in figure) between Nozzle flapper valve 39 and plunger 57, Nozzle flapper valve 39 by each the interlock bolt 41 along with (interlock) moved in the movement of plunger 57.Open and close valve 59 and Nozzle flapper valve 39 become the relation that the opposing party just closes when a side opens.
Each bolt 41 that links runs through the side to gas path 33 by the gap of regulation.By like this, give the pressurized air of gas path 33 when open and close valve 59 is driven valve, by flowing in the first air-pressure chamber 29 from the open part of supplying with valve seat 33a around each interlock bolt 41.
When making to gas path 33 in connected state by the first open and close valve mechanism 34, exhaust passageway 35 by Nozzle flapper valve 39 in pent state.Under this state, from giving gas port 24, to both sides' supply of each air-pressure chamber 29,31, pressurized air is arranged.At this moment, because the compression area of first piston 30 is larger than the compression area of the second piston 32, so moved to axial opposite side according to this compression face product moment main valve axle 23.On the other hand, when making by the first open and close valve mechanism 34 to gas path 33 when cutting off state, Nozzle flapper valve 39 is opened, and exhaust passageway 35 is communicated with the first air-pressure chamber 29, and the first air-pressure chamber 29 is by atmosphere opening.Under this state, to the interior supply of the second air-pressure chamber 31, pressurized air is arranged from giving 24 of gas ports, by like this, main valve axle 23 is moved to an axial side.
As shown in Figure 1, electromagnetism section 50 has resin material by plastic cement etc. and forms box-formed shape roughly the electromagnetic coil case 51 be connected with valve chamber 21.Take in the bobbin 53 of coiling coil 52 in the inside of electromagnetic coil case 51, in the axial side of bobbin 53, the column (fixed iron core) 54 consisted of magnetic material is installed.An axial side of column 54 is urged by electromagnetic shield 56 by leaf spring 55, and the axial opposite side of column 54 enters into the inboard of bobbin 53.
Axial opposite side at column 54 is provided with the solid and columned plunger (movable core) 57 consisted of magnetic material, and plunger 57 is incorporated in electromagnetic coil case 51.Plunger 57 in the inboard of bobbin 53 with column 54 be configured in coaxial on, and mobile in the axial direction freely in the inboard of bobbin 53.At the axial opposite side of plunger 57 and at the diametric(al) middle body of plunger 57, be fixed with the open and close valve 59 formed by rubber, resin material.Open and close valve 59 is fixed on plunger 57 by the fixation method freezed etc., and is disseated and take a seat supplying with valve seat 33a.
The axial opposite side of plunger 57 and and bobbin 53 between, be provided with plunger 57 to axial opposite side, be about to open and close valve 59 to the first spring 61 of supplying with valve seat 33a and being pushed.By like this, when coil 52 energising, the pushing force of plunger 57 opposing the first pushing springs 61 attracted to column 54 1 sides and moves to primary importance, thereby open and close valve 59 is disseated from supplying with valve seat 33a.On the other hand, when coil 52 is non-energising, plunger 57 is moved to the second place by the pushing force of the first pushing spring 61, and open and close valve 59 is taken a seat to supplying with valve seat 33a.By like this, can, along with the movement of plunger 57, control to the compressed-air actuated supply discharge of each air-pressure chamber 29,31 of valve chamber 21, thereby main valve axle 23 is moved in the axial direction.
Long side direction one side at valve chamber 21 is formed with the reception hole 21a extended to the rectangular direction of the movement direction with plunger 57.Reception hole 21a be equipped with by the operator from outside manually operated hand push button (manual operational unit) 70, the axle center C1 of reception hole 21a and the axle center C2 of plunger 57 biasing predetermined distance (with reference to Fig. 6).Reception hole 21a starts to have diameter holes 21b, 21cJi great footpath, central diameter hole hole 21d from plunger 57 1 sides, in large footpath hole 21d, is provided with in the 50 1 large footpath of the side direction hole 21d of electromagnetism section and carries out outstanding break 21e.
Large-diameter portion 73 is formed with the slot part 73a that enters break 21e in the mode along its circumferencial direction, and slot part 73a has the first groove 73b and the second groove 73c.The size of the direction along axle center C1 of the first groove 73b is compared and is set significantly with the size of the direction along axle center C1 of the second groove 73c.The first groove 73b allows break 21e to the relatively moving of the direction along axle center C1, but simultaneously at the state shown in Fig. 1 and Fig. 2, be that under the state of break 21e minor diameter part 74 1 sides that are positioned at the first groove 73b, limit stop 21e relatively moves to circumferencial direction.By like this, under the state shown in Fig. 1 and Fig. 2, hand push button 70 can not relatively rotate with valve body 21.
The second groove 73c is connected with controlling rod section 72 1 sides of the first groove 73b, and its size is along the circumferential direction compared and set significantly with the size along the circumferential direction of the first groove 73b.The second groove 73c limit stop 21e relatively moving on the direction along axle center C1, but allow break 21e relatively moving in a circumferential direction simultaneously.The second groove 73c allows hand push button 70 to relatively rotate about 90 degree with respect to valve chamber 21.
Controlling rod section 72 1 sides of minor diameter part 74 are provided with the annulus 75 of the inside and outside rubber system of seal valve chamber 21.Annulus 75 is arranged in the annular slot 74a be formed on minor diameter part 74, by like this, to being sealed between minor diameter part 74 and central diameter hole 21c.
In plunger 57 1 sides of minor diameter part 74, be wholely set and formed roughly spring section 76 cylindraceous.The hand push button 70 that comprises spring section 76 is formed by the resin material of plastic cement etc., and spring section 76 is elastically deformable on the movement direction of plunger 57.Spring section 76 forms by the axial notch part 76a along hand push button 70 with as the main part 76b of the roughly C word shape of other parts.
Fig. 1 and Fig. 2 illustrate the non-operating state that do not operate hand push button 70, are that hand push button 70 is in rotating the state of reference position, under this state, the axial opposite side of notch part 76a and plunger 57 is opposed, allows plunger 57 to move between primary importance and the second place.Here, primary importance is exactly to make coil 52 energisings, thus the position of the plunger 57 that plunger 57 contacts the first open and close valve mechanism 34 with column 54 while having driven valve.In addition, the second place be exactly at coil 52 in energising, thereby the position of the plunger 57 that plunger 57 has left column 54 first open and close valve mechanisms 34 while having closed valves.
When making hand push button 70 start to rotate from rotating reference position, the axial opposite side of main part 76b and plunger 57 is opposed, the axial opposite side butt of main part 76b and plunger 57.By making hand push button 70 start further rotation from rotating reference position, even coil 52 is non-energising, main part 76b also makes plunger 57 move to primary importance.
In the diametric(al) inboard of spring section 76, be provided with the support rod 77 that is set as the diameter dimension less than interior all diameters of spring section 76.The terminal side of support rod 77 and minor diameter part 74 are wholely set, and it is side-prominent that the tip side of support rod 77 and spring section 76 are compared to plunger 57 1, and mobile being embedded into freely in the diameter holes 21b of valve chamber 21.Here, diameter holes 21b forms the bearing hole in the present invention.
In the gap of formed ring-type, be provided with backspring 78 between spring section 76 and support rod 77.Backspring 78 often pushes the mode of hand push button 70, the initial load of stipulating with the outside of the diametric(al) to plunger 57.
Form the anti-locking mechanism of misoperation in the present invention by slot part 73a, backspring 78 and break 21e here.Namely, opposed at the axial opposite side of notch part 76a and plunger 57, when hand push button 70 is positioned at the diametric(al) outside of plunger 57, break 21e is positioned at minor diameter part 74 1 sides of the first groove 73b, thereby the rotation of hand push button 70 is limited.On the other hand, the pushing force of resisting backspring 78 the operator is pressed into controlling rod section 72, and when hand push button 70 is positioned at the diametric(al) inboard of plunger 57, thereby break 21e enters into the rotation that allows hand push button 70 in the second groove 73c.
As shown in Fig. 4 (a), the place corresponding with controlling rod section 72 in the outside of valve chamber 21, be provided with display unit 80.Display unit 80 is arranged on valve chamber 21 by silk-screen etc., and consists of the sequence of operation that means controlling rod section 72 and arrow, the character of serviceability.The character of " PUSH ", " TURN " and each thick-line arrow become the sequence of operation display unit 81 of the sequence of operation that means controlling rod section 72.In addition, the character of " め (pass) ", " あ け (opening) " becomes the serviceability display unit 82 corresponding with the pivotal position of controlling rod section 72.Here, display unit 80 is not limited to silk-screen, also can on valve chamber 21, paste seal and form.
Fig. 4 (b) illustrates another example of controlling rod section 72 and another example (variation) of serviceability display unit 82.As shown in Fig. 4 (b), be considered as short shape by making controlling rod section 72, can prevent that serviceability display unit 82 from occurring because of the situation that controlling rod section 72 is hidden.By like this, the serviceability of easy visual solenoid valve 10.In addition, by making serviceability display unit 82, be considered as English alphabet mark " ON ", " OFF ", can be corresponding with overseas outlet.Here, the primary importance of the plunger 57 when " あ け " or " ON " have switched on the coil 52 making solenoid valve 10 is corresponding, and the second place of " め " or " OFF " and coil 52 making solenoid valve 10 plunger 57 when non-energising is corresponding.
Here, in Fig. 1, symbol CN is the connector for electric wiring EC is connected with coil 52, be arranged on a side and coil 52 electrical connections of the electric wiring EC in connector CN, the opposite side of electric wiring EC (not shown) and controller (not shown) electrical connection.
Then, with reference to accompanying drawing, the action of the solenoid valve 10 that the first embodiment who forms like that more than object is related is described in detail.(a) of Fig. 5, (b) are that part amplification sectional view, Fig. 6 (a), (b) that the sequence of operation of the hand push button corresponding to the cross section with Fig. 2 describes are the part amplification sectional views that the sequence of operation to the hand push button of the direction of the cross section quadrature from Fig. 5 describes.
Sequence of operation 1
From the state shown in Fig. 2, be that the axial opposite side of notch part 76a and plunger 57 is opposed, hand push button 70 is positioned at the state that rotates reference position, the controlling rod section 72 that the pushing force of opposing backspring 78 is pressed hand push button 70.So break 21e moves in the first groove 73b, and relatively moved from minor diameter part 74 1 side direction controlling rod section 72 1 sides of the first groove 73b.In addition, the tip side of support rod 77 is inserted in the diameter holes 21b of valve chamber 21.
By like this, as shown in the arrow (1) of Fig. 5 (a), hand push button 70 is to plunger 57 1 side shiftings, and backspring 78 is compressed, and the push action of hand push button 70 (sequence of operation 1) finishes.
Sequence of operation 2
Then, under the state of pressing hand push button 70, as shown in the arrow (2) of Fig. 5 (a) and Fig. 6 (a), control controlling rod section 72 and make hand push button 70 start to rotate from rotating reference position.Here, the sense of rotation of hand push button 70 can be grasped by the sequence of operation display unit 81 (with reference to Fig. 4) of visual display unit 80.
Along with hand push button 70 starts to rotate from rotating reference position, break 21e enters in the second groove 73c from the first groove 73b.So, even hand push button 70 is removed pressing forces, also can not pushed back by backspring 78 and in rotatably.
When hand push button 70 further is rotated further, main part 76b contacts with the axial opposite side of plunger 57, afterwards, as shown in the arrow (3) of Fig. 5 (b) and Fig. 6 (b), the pressing force of pressing spring 61 is pressed in opposing first, thereby plunger 57 is upwards pushed away to primary importance and moved.By like this, give gas path 33 in figure such connected state shown in dotted arrow (4), in the situation equal state with making coil 52 switch on and plunger 57 is moved.At this moment, as shown in the arrow (5) of Fig. 6 (b), main part 76b, in the state resiliently deformable from shown in dotted line, makes an axial side of plunger 57 and the axial opposite side butt of column 54.
When making hand push button 70 start to rotate about 90 while spending from rotating reference position,, in the state shown in Fig. 5 (b) and Fig. 6 (b), notch part 76a comes the position that has surpassed center line C3.By like this, the power that the first spring force by pressing spring 61 turns back to original place as the rotation by main part 76b is inoperative, thereby even solenoid valve 10 is applied with to vibration etc., also can keep reliably " opening state (on-state) ".
Here, as shown in Fig. 5 (b) and Fig. 6 (b), the lifting capacity D of the plunger 57 based on main part 76b is because of the error of the axial dimension of plunger 57, column 54, the standard deviation because of the size of each goods is changed.For example, when the error of the axial dimension of plunger 57 and column 54 is overgauge, lifting capacity D diminishes, and when being negative deviation, it is large that lifting capacity D becomes.Be directed to this, due to main part 76b elastically deformable, so no matter be overgauge/negative deviation to the error of the axial dimension of plunger 57 and column 54, can absorb.
In addition, when plunger 57 is turned back to the second place, contrary to the above, first make hand push button 70 rotate round about about 90 degree.Afterwards, can be by removing the pressing force of hand push button 70, the pushing force by backspring 78 automatically turns back to original state (second place) by hand push button 70.
As detailed above, the related solenoid valve 10 according to the first embodiment, centered by the axis C1 that will extend by the axial rectangular direction along with plunger 57, rotating hand push button 70 is arranged on valve chamber 21, will be opposed with the end of plunger 57, on the movement direction of plunger 57, the spring section 76 of the tubular of elastically deformable is arranged on hand push button 70, spring section 76 has when hand push button 70 is positioned at the rotation reference position, the notch part 76a that allows plunger 57 to move between primary importance and the second place, when making hand push button 70 start to rotate from rotating reference position, make plunger 57 move to the main part 76b of primary importance.Radially inner side in spring section 76, be provided with in mobile mode freely and embed the support rod 77 in the diameter holes 21b be arranged in valve chamber 21, between spring section 76 and support rod 77, the backspring 78 that hand push button 70 is pushed to the radial outside of plunger 57 is set, in hand push button 70, be provided with when hand push button 70 is positioned at the radial outside of plunger 57 slot part 73a, backspring 78 and the break 21e of the rotation of limit manual button 70 rotation of permission hand push button 70 when hand push button 70 is positioned at the radially inner side of plunger 57.
Therefore, by made hand push button 70 by manually-operable, from rotating reference position, start to rotate, can make plunger 57 move forcibly.The main part 76b that plunger 57 is moved is along with the mobile elastically deformable of plunger 57, so can absorb the larger size error of plunger 57 grades.Spring section 76 is rotated in due to the rotation at hand push button 70, thus can with hand push button 70 carry out integrated, thereby can suppress the increase of components number.In addition, owing to diameter holes 21b, moving and having embedded freely support rod 77, thus can improve the flexural rigidity of spring section 76 sides of hand push button 70, thus inhibition is along with the deflection of the hand push button 70 of the resiliently deformable of main part 76b.Therefore, can prevent that the pressurized air in valve chamber 21 from occurring from the situation of leaking to outside between valve chamber 21 and hand push button 70.Because hand push button 70 can't be rotated operation under the state in deflection, so can prevent uneven wear along with the rotation of hand push button 70 etc.And, owing to being provided with backspring 78 and slot part 73a, backspring 78 and break 21e, therefore, can prevent hand push button 70 after the pushing force of opposing backspring 78 is pressed in rotating state, the situation of generation operator careless misoperation hand push button 70.
In addition, the related solenoid valve 10 according to the first embodiment, in valve chamber 21, arrange supply with to discharge the compressed-air actuated a pair of air-pressure chamber 29,31 of the movement direction both end sides that acts on main valve axle 23 is arranged and be communicated with each air-pressure chamber 29,31 to gas path 33, plunger 57 is by being communicated with to gas path 33 to the mobile of primary importance, by cutting off to gas path 33 to the mobile of the second place, main valve axle 23 is discharged and is moved by the compressed-air actuated supply to each air-pressure chamber 29,31.Therefore, the solenoid valve using solenoid valve 10 as indirect operation type, can move the large main valve axle 23 of steering force with a plurality of sealed member 23a.By like this, all if arrange more mouthful on valve chamber 21, otherwise, in the situation that being tailed off, mouthful quantity can make the main valve axle move more reliably.
Then, with reference to accompanying drawing, the second embodiment of the present invention is described in detail.In addition, to the additional same symbol of the part with function same with the first above-mentioned embodiment, and omit its detailed explanation.Fig. 7 means the sectional view of the solenoid valve that the second embodiment is related.
As shown in Figure 7, related solenoid valve 90 solenoid valve 10 related with the first embodiment of the second embodiment compared, the second piston 32 that is arranged on the axial opposite side of main valve axle 23 in replacement reaches the second air-pressure chamber 31 (with reference to Fig. 1) of taking in sliding freely the second piston 32, and also configures this some difference of electromagnetism section 50 at the long side direction opposite side of valve chamber 21.Namely, the related solenoid valve 90 of the second embodiment is the tubular solenoid valve of so-called double-deck helical.
Each electromagnetism section 50, with the mode arranged opposite across valve chamber 21 Mirror Symmetries, in the axial both sides of main valve axle 23, has a pair of the first air-pressure chamber 29 and reaches a pair of first piston 30 that section arranges sliding freely within it.By a pair of the first air-pressure chamber 29 is set, with each first air-pressure chamber 29, be connected respectively to the both end sides of gas path 33.Each plunger 57 of each electromagnetism section 50 is corresponding with each first air-pressure chamber 29, and is communicated with respectively or cuts off to gas path 33.Switch on individually or non-energising by each that makes a pair of coil 52 corresponding with each plunger 57, can supply with individually and discharge pressurized air to each the first air-pressure chamber 29.
, when making each coil 52 in "on" position and making each plunger 57 move to primary importance, in each first air-pressure chamber 29, be supplied to pressurized air here, each first air-pressure chamber 29 all becomes equipressure, and by like this, main valve axle 23 is maintained at then and there.In addition, when making under the state of each coil 52 in non-energising and making each plunger 57 move to the second place, each first air-pressure chamber 29 is by atmosphere opening, and each first air-pressure chamber 29 is equipressure, and by like this, main valve axle 23 is maintained at then and there.Namely, by control on the contrary respectively "on" position, the non-power status of each coil 52 (antithesis), can make main valve axle 23 move and switch the connected state of each mouthful 24～28.
By each electromagnetism section 50 of the mode arranged opposite with across 21 one-tenth Mirror Symmetries of valve chamber, the rotating operation direction of each hand push button 70 is also contrary.Namely, in push action after each hand push button 70, in the twocouese figure of the controlling rod section 72 by making each hand push button 70 in front of direction rotate, can make each plunger 57 move to the second place.By like this, in solenoid valve 90, the operability of each hand push button 70 is improved.In addition, because the rotating operation direction that makes each hand push button 70 is contrary respectively, so it is also contrary to be arranged on the demonstration of the display unit 80 (with reference to Fig. 4) on valve chamber 21.
Even, in resembling above the related solenoid valve 90 of the second embodiment of forming, also can play the action effect same with the first above-mentioned embodiment.On this basis, the related solenoid valve 90 according to the second embodiment, corresponding each first air-pressure chamber 29, arrange and be communicated with or cut off a pair of plunger 57 to gas path 33, by each coil 52 energising or the non-energisings to corresponding with each plunger 57, to each first air-pressure chamber 29, supply with individually and discharge pressurized air.Therefore, can make the main valve axle that more steering force is large move.
Then, with reference to accompanying drawing, the third embodiment of the present invention is described in detail.In addition, to having and the additional same-sign of the part of first above-mentioned embodiment's said function, and description is omitted.Fig. 8 means the sectional view of the solenoid valve that the 3rd embodiment is related.
Although the related solenoid valve 10 of the first embodiment is solenoid valves of the indirect operation type of two-position five-way, as shown in Figure 8, the solenoid valve of the on-line operation formula that the related solenoid valve 100 of the 3rd embodiment is two-position three way.Solenoid valve 100 is compared with solenoid valve 10 (with reference to Fig. 1), omit main valve axle 23, each air-pressure chamber 29,31, each piston 30,32, give gas path 33, exhaust passageway 35, the second open and close valve mechanism 36 and exhaust port 37 (with reference to Fig. 1), by open and close valve 59 and Nozzle flapper valve 1 05 directly switching be arranged on the connected state of each mouthful 102～104 on valve chamber 101.
In valve chamber 101, be provided with first 102, second mouthful 103 and the 3rd mouthful 104, be respectively arranged with open and close valve 59 the second valve seat 104a that the first valve seat 103a of taking a seat and Nozzle flapper valve 105 disseated and take a seat that disseated in second mouthful 103 and the 3rd mouthful 104.Each valve seat 103a, 104a with respectively in the opposite direction the mode arranged opposite of (above-below direction in figure) in valve chamber 101.Here, the valve body that the related open and close valve 59 of the 3rd embodiment and Nozzle flapper valve 105 form in the present invention.
Be provided with a plurality of interlock bolts 106 (only illustrating two in diagram) between open and close valve 59 and Nozzle flapper valve 105, and, be provided with the disc spring 107 that Nozzle flapper valve 105 is pushed towards the second valve seat 104a between Nozzle flapper valve 105 and valve chamber 101.
By like this, when coil 52 energising, plunger 57 moves to primary importance, and open and close valve 59 is disseated from the first valve seat 103a, and Nozzle flapper valve 105 is seated on the second valve seat 104a.In addition, at coil 52, during in non-energising, plunger 57 moves to the second place, and it is upper that open and close valve 59 is seated in the first valve seat 103a, and Nozzle flapper valve 105 is disseated from the second valve seat 104a.By doing like this, can make first 102 and second mouthful 103 in connected state/make first 102 and the 3rd mouthful 104 in the partition state, or make first 102 and second mouthful 103 in partition state/make first 102 and the 3rd mouthful 104 in connected state.
Even, also can play except the effect of the solenoid valve with indirect operation type in related solenoid valve 100 in the 3rd embodiment who forms as above, also there is the action effect same with the first above-mentioned embodiment.On this basis, the related solenoid valve 100 according to the 3rd embodiment, so owing to for the solenoid valve of on-line operation formula, can cutting down significantly components number.In addition, because the open and close valve 59 as valve body and Nozzle flapper valve 105 all do not have slide part, so thereby can make the thrust of plunger 57 diminish seeks to save electric power.
The present invention is not limited to the various embodiments described above, certainly only otherwise breaking away from main idea of the present invention can have various distortion.For example, in the various embodiments described above, although formed hand push button 70 by the resin material of plastic cement etc., the present invention is not limited thereto, and also can be formed by steel etc.In this case, can improve the torsional stiffness of hand push button, thereby the situation of the breakage of the hand push button while preventing from operating reliably etc. occurs.In addition, owing to can improving torsional stiffness, thus the deflection of the hand push button in the time of can suppressing to operate, and also can omit support rod.
In addition, in above-mentioned the first embodiment, although show the situation that configures respectively each air-pressure chamber 29,31 and main valve axle 23 is moved in the axial both sides of main valve axle 23, but the present invention is not limited thereto, also the second air-pressure chamber 31 can be considered as to the spring accommodation chamber and uses the disc spring of replacing the second piston 32.Even in this case, also can pass through the disc spring load thrust same to main valve axle 23.
Utilize possibility on industry
Solenoid valve is configured in and produces compressed-air actuated pneumatic source and discharge and carry out between the pressure work equipment of work by compressed-air actuated supply, for the working state of the pressure work equipment that switches cylinder etc., uses.
Claims (3)
1. a solenoid valve comprises: valve chamber, form hollow shape, and have and be communicated with inside and outside a plurality of mouthfuls; Valve body, mobile being arranged on freely in described valve chamber, for switching the connected state of described each mouthful, this solenoid valve is characterised in that, also comprises:
The electromagnetic coil case, be connected with described valve chamber, for taking in coil;
Movable core, be accommodated in described electromagnetic coil case, and described movable core moves to primary importance when described coil electricity, when described coil no electric circuit, moves to the second place, so that described valve body moves;
Manual operational unit, be installed on described valve chamber, centered by the axle center that can extend by the axial rectangular direction along with described movable core, rotates;
The spring section of tubular, be arranged at described manual operational unit, and described spring section is relative with the end of described movable core, can be on the movement direction of described movable core resiliently deformable;
Notch part, be arranged at described spring section, when described manual operational unit is positioned at the rotation reference position, allows described movable core to move between described primary importance and the described second place;
Main part, be arranged at described spring section, when described manual operational unit is rotated from described rotation reference position, makes described movable core move to described primary importance;
Support rod, be arranged at the radially inner side of described spring section, in mobile mode freely, embeds in the bearing hole that is arranged at described valve chamber;
Backspring, be arranged between described spring section and described support rod, for the radial outside to described movable core, pushes described manual operational unit; And
Locking mechanism is prevented in misoperation, be arranged at described manual operational unit, the anti-locking mechanism of described misoperation is when described manual operational unit is positioned at the radial outside of described movable core, limit the rotation of described manual operational unit, when described manual operational unit is positioned at the radially inner side of described movable core, allow the rotation of described manual operational unit.
2. solenoid valve according to claim 1, is characterized in that,
At described valve chamber, be provided with for supplying with the compressed-air actuated a pair of air-pressure chamber of discharging the movement direction both end sides act on described valve body and for being communicated with the air pressure path of described each air-pressure chamber, described movable core is by moving to described primary importance, be communicated with described air pressure path, by moving to the described second place, block described air pressure path, based on described pressurized air, to the supply of described each air-pressure chamber, discharge, thereby described valve body is moved.
3. solenoid valve according to claim 2, is characterized in that,
Be provided for accordingly being communicated with or blocking a pair of described movable core of described air pressure path with described each air-pressure chamber, by to corresponding described each coil electricity of described each movable core or no electric circuit, thereby supply with individually and discharge described pressurized air to described each air-pressure chamber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009207352A JP4547461B1 (en) | 2009-09-08 | 2009-09-08 | solenoid valve |
| JP2009-207352 | 2009-09-08 | ||
| PCT/JP2010/051795 WO2011030570A1 (en) | 2009-09-08 | 2010-02-08 | Electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102625887A CN102625887A (en) | 2012-08-01 |
| CN102625887B true CN102625887B (en) | 2013-12-11 |
Family
ID=42978688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800390040A Expired - Fee Related CN102625887B (en) | 2009-09-08 | 2010-02-08 | Electromagnetic valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4547461B1 (en) |
| CN (1) | CN102625887B (en) |
| WO (1) | WO2011030570A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6217720B2 (en) * | 2015-09-11 | 2017-10-25 | ダイキン工業株式会社 | solenoid valve |
| JP6531126B2 (en) * | 2016-03-01 | 2019-06-12 | Ckd株式会社 | solenoid valve |
| KR200495540Y1 (en) * | 2020-12-30 | 2022-06-22 | 효신전기주식회사 | Pilot operated solenoid valve with a locking device for manual operating pin |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4627597A (en) * | 1984-12-20 | 1986-12-09 | Wabco Westinghouse Steuerungstechnik Gmbh & Co. | Valve activation apparatus |
| EP0762026A1 (en) * | 1995-09-04 | 1997-03-12 | Honeywell Lucifer Sa | Electromagnetic multiple way valve |
| CN1659396A (en) * | 2002-06-06 | 2005-08-24 | 株式会社小金井 | Electromagnetic valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2828102A (en) * | 1951-12-03 | 1958-03-25 | Honeywell Regulator Co | Valve actuator latch means |
| JPS554618Y2 (en) * | 1975-07-04 | 1980-02-02 | ||
| JP2600316Y2 (en) * | 1992-07-17 | 1999-10-12 | 株式会社コガネイ | Solenoid directional valve |
| JP4158782B2 (en) * | 2005-04-14 | 2008-10-01 | Ｓｍｃ株式会社 | Electromagnetic actuator |
-
2009
- 2009-09-08 JP JP2009207352A patent/JP4547461B1/en not_active Expired - Fee Related
-
2010
- 2010-02-08 CN CN2010800390040A patent/CN102625887B/en not_active Expired - Fee Related
- 2010-02-08 WO PCT/JP2010/051795 patent/WO2011030570A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4627597A (en) * | 1984-12-20 | 1986-12-09 | Wabco Westinghouse Steuerungstechnik Gmbh & Co. | Valve activation apparatus |
| EP0762026A1 (en) * | 1995-09-04 | 1997-03-12 | Honeywell Lucifer Sa | Electromagnetic multiple way valve |
| CN1659396A (en) * | 2002-06-06 | 2005-08-24 | 株式会社小金井 | Electromagnetic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011030570A1 (en) | 2011-03-17 |
| JP4547461B1 (en) | 2010-09-22 |
| JP2011058541A (en) | 2011-03-24 |
| CN102625887A (en) | 2012-08-01 |
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